{
  "id": "single-software-execution--cli--calculix--task-08--ubuntu",
  "snapshot": "CalculiX-2.21",
  "instruction": "Work from a frequency-analysis cantilever deck `/home/user/Desktop/modal_dynamic_base.inp`. Run `ccx --version` or invoke the installed `ccx` binary from a terminal. At the start of the task, use `/usr/bin/ccx` for the CalculiX solve and `/usr/bin/cgx` when CGX processing is needed.\n\nComplete the following from the command line: 1. Copy/extend it as `/home/user/Desktop/modal_dyn.inp`, keeping the existing `*Frequency, Storage=YES` step as the first step so the modal data and the following modal-dynamic step belong to the same `modal_dyn` job. 2. Add a second step using `*Modal Dynamic` with initial increment `0.001 s` and total time `0.1 s`. Apply a total `FY=-100 N` to the four nodes in the `Tip` node set (`-25 N` per node), keep the `Fixed` set constrained, and request `U` using both `*Node Print, Nset=Tip, Frequency=1` and `*Node File, Nset=Tip`. 3. Run `ccx modal_dyn`; the successful job must create `modal_dyn.dat`, `modal_dyn.frd`, and `modal_dyn.eig`. 4. Write `/home/user/Desktop/postprocess.py` to parse every printed Tip displacement block in `modal_dyn.dat`, average `UY` over the four Tip nodes at each time, and write `/home/user/Desktop/summary.txt` as `peak_abs_mean_tip_uy_mm, final_mean_tip_uy_mm`, where the first value is the maximum absolute mean Tip `UY` and the second is the mean Tip `UY` at `t=0.1 s`.",
  "source": "https://github.com/calculix/CalculiX-Examples",
  "config": [
    {
      "type": "upload_file",
      "parameters": {
        "files": [
          {
            "local_path": "task-08/init_file/modal_dynamic_base.inp",
            "path": "/home/user/Desktop/modal_dynamic_base.inp"
          }
        ]
      }
    }
  ],
  "trajectory": "trajectories/",
  "related_apps": [
    "calculix"
  ],
  "artifact_paths": [
    "/home/user/Desktop/modal_dyn.dat",
    "/home/user/Desktop/modal_dyn.inp",
    "/home/user/Desktop/postprocess.py",
    "/home/user/Desktop/summary.txt"
  ],
  "evaluator": {
    "postconfig": [
      {
        "type": "upload_file",
        "parameters": {
          "files": [
            {
              "local_path": "task-08/eval.py",
              "path": "/home/user/Desktop/eval.py"
            }
          ]
        }
      }
    ],
    "func": "exact_match",
    "result": {
      "type": "vm_command_line",
      "command": "python3 /home/user/Desktop/eval.py",
      "shell": "true"
    },
    "expected": {
      "type": "rule",
      "rules": {
        "expected": "True\n"
      }
    }
  },
  "proxy": false,
  "fixed_ip": false,
  "possibility_of_env_change": "low"
}